Plate Tectonics: The Grand Unifying Theory of Geology
Plate Tectonics: The Grand Unifying Theory of Geology
Plate Tectonics: The Grand Unifying Theory of Geology
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Mid-Ocean Ridge Activity:<br />
Black Smokers & Pillow Basalts<br />
• Magma heats water and it jets out <strong>of</strong> these<br />
chimney-like vents. <strong>The</strong> water is black<br />
because <strong>of</strong> dark colored minerals. Strange<br />
critters live here!<br />
• When lava erupts underwater,<br />
instead <strong>of</strong> making coherent<br />
flows, it forms rounded bloblike<br />
pillows. Commonly<br />
called pillow basalts